/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001,2004 The Apache Software Foundation.  All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in
*    the documentation and/or other materials provided with the
*    distribution.
*
* 3. The end-user documentation included with the redistribution,
*    if any, must include the following acknowledgment:
*       "This product includes software developed by the
*        Apache Software Foundation (http://www.apache.org/)."
*    Alternately, this acknowledgment may appear in the software itself,
*    if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
*    "Apache Lucene" must not be used to endorse or promote products
*    derived from this software without prior written permission. For
*    written permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
*    "Apache Lucene", nor may "Apache" appear in their name, without
*    prior written permission of the Apache Software Foundation.
*
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation.  For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/

using System;
using NUnit.Framework;

namespace Lucene.Net.store
{
	
    [TestFixture]
    public class TestLock
    {
		
        [Test]
        public virtual void  TestObtain()
        {
            LockMock lock_Renamed = new LockMock(this);
            Lucene.Net.Store.Lock.LOCK_POLL_INTERVAL = 10;
			
            try
            {
                lock_Renamed.Obtain(Lucene.Net.Store.Lock.LOCK_POLL_INTERVAL);
                Assert.Fail("Should have failed to obtain lock");
            }
            catch (System.IO.IOException e)
            {
                Assert.AreEqual(lock_Renamed.lockAttempts, 2, "should attempt to lock more than once");
            }
        }
		
        private class LockMock : Lucene.Net.Store.Lock
        {
            public LockMock(TestLock enclosingInstance)
            {
                InitBlock(enclosingInstance);
            }
            private void  InitBlock(TestLock enclosingInstance)
            {
                this.enclosingInstance = enclosingInstance;
            }
            private TestLock enclosingInstance;
            override public bool IsLocked()
            {
                return false;
            }
            public TestLock Enclosing_Instance
            {
                get
                {
                    return enclosingInstance;
                }
				
            }
            public int lockAttempts;
			
            public override bool Obtain()
            {
                lockAttempts++;
                return false;
            }
            public override void  Release()
            {
                // do nothing
            }
        }
    }
}